4549886820 has 72 divisors (see below), whose sum is σ = 13822079544. Its totient is φ = 1211478528.

The previous prime is 4549886807. The next prime is 4549886837. The reversal of 4549886820 is 286889454.

4549886820 is a `hidden beast` number, since 454 + 98 + 86 + 8 + 20 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 2152217664 + 2397669156 = 46392^2 + 48966^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 103192 + ... + 140528.

It is an arithmetic number, because the mean of its divisors is an integer number (191973327).

Almost surely, 2^4549886820 is an apocalyptic number.

It is an amenable number.

4549886820 is an abundant number, since it is smaller than the sum of its proper divisors (9272192724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4549886820 is a wasteful number, since it uses less digits than its factorization.

4549886820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38029 (or 38024 counting only the distinct ones).

The product of its (nonzero) digits is 4423680, while the sum is 54.

The square root of 4549886820 is about 67452.8488649664. The cubic root of 4549886820 is about 1657.0420566270.

The spelling of 4549886820 in words is "four billion, five hundred forty-nine million, eight hundred eighty-six thousand, eight hundred twenty".